Paper box



' H. GOETTSGH.

Pate nfed Dad. 4 1894f (-No Model.)

PAPER BOX.

" NITED .ST TEsi PATENT OFEI HERMAN GOETTSQH,OF1QIIIOAGOJILIJNQIS,ASSIGNOR OFQNE-HALF 1 0: THE 3. w. SEFTONMANUFAGTUBING COMPANY, orINDIANA.

PAPEREBOX.

$PEGIFICATION forming part of Letters Patent No. 530,334, dated December4, 1894.

Application filed September 10.1394. semi 116.522.536. (NomodeL) To allwhom it may concern: j

Be it known that I, HERMAN GoErTsoI-I, a citizen of the United States,residing at Chicago, in the county of Cook and Stateof Illinois, haveinvented a certain new and useful Improvement in Paper Boxes, of whichthe following is a description, reference being had to the accompanyingdrawings, forming part of this specification.

My invention relates to the class of paper boxes known as knock-downboxes, and more particularly to boxes composed of two similar halves,one constituting the body or box proper, and the other, slightly larger,constituting the lid and fitting over the body.

Inasmuch as the two halves are generally precisely alike excepting insize, and each forms a complete open box, a description of either onewill serve to explain my invention, which consists in novel means forsecuring in position the inturned flaps of the ends of the box andthereby maintaining the folded blank in box form.

In the accompanying drawings Figure 1 shows the cut and creased blankfrom which the box is folded, and Fig. 2 a perspective view of thefolded box.

The blank is composed of the central portion A, which forms either thebottom of the box or the top of the lid, the sides B having the endextensions 0 G, the ends D D and i the flaps or extensions EE thereofeach provided with thetwo laterallyproj ectin g tongues F F adapted,when the blank is folded into box form, to co-operate with catches G Gcut in the sides B B near the ends thereof, in the manner hereinafterdescribed. In the present instance the tongues F F are triangular inshape, and the catches G G are formed by semi-circular or curved slitsin the sides B B,

but these shapes may be varied without departing from my invention.

In folding the blank into box form the sides B B are first bent upwardto vertical position and their extensions 0 0 turned inward across theend of the box. Then the ends D D are bent upward to vertical positionand the flaps E E bent inward and downward over the extensions 0 G, intovertical position against the inner faces of the same, confining saidextensions between the ends D D and edges of the tongues, as seen inFig. 2. When the flaps E E. As theflapsE E are thus bent downintoposition the tongues F F will be pressed against the sides B B and bentat right angles to the flaps E E and ends of the box. As the flapsreachvertical position the tongues F F will pass over the catches G Gand by pressing the latter slightly inward they may be readily engagedwith the upper so engaged the box is securely held in shape againststrain upon either its sides or ends. If outward pressure be applied tothe ends of the box the upper edges of the tongues, near their points,will become tightly wedged in the lower ends of the curved slits whichform the catches G G and firmly resist the strain.

The tongues F F and the slits in the sides B B may be so shaped that thetongues will pass through the slits, but the preferred and betterconstructionis to cut the slits of such shape as to form catches whichfit over the upper edges of the tongues, both to better resist strainsupon the box and form a neater exterior finish, and also to facilitatethe folding of the blanks into box form. Under the construction shownthe engagement of the tongues with the catches is so easily andexpeditiously effected that it is substantially automatic or incidentalto the mere pressing of the end flaps E E down into position, andrequires no appreciable extra time or labor.

I am aware that it is not new to fold a box from a blank substantiallythe same as that I employ (minus the tongues F F), and in substantiallythe same manner as I fold mine, but in the instances with which I amfamiliar the end flaps E E have been secured in position and the boxheld in shape by engaging the corners of said flaps, or tongues thereon,with slits in the side extensions 0 G. The engagement of the tongues orcorners with such slits in the side extensions cannot be effected soeasily and quickly as can the engagement of the tongues F F with thecatches or catches in the sides B B of the box, and

my invention is therefore of corresponding scope.

Having thus f ully'described my invention, I claim 1. The hereindescribed knockdown paper box, composed of the central portion, thesides having the inturned extensions, the ends, and the end flaps bentdownward over the inturned side extensions and provided upon theirdownwardly bent ends with laterally projecting tongues co-operatin gwith slits cut in the sides of the box.

2. The herein described knock-down paper box, composed of the centralportion, the sides having the inturned extensions, the ends, and the endflaps bent downward over the inturned side extensions and provided upontheir downwardly bent ends with laterally projecting tonguesco-operating with catches formed by slits in the sides of the box,substantially as described. a

3. The herein described knock-down paper box, composed of the centralportion, the sides

